check pm. sorry forgot to give any specs on the oz, if you need em I'll give em, but if you've been a lifelong basshead, you'll know what they are about. $400.00 a piece new when oz was in business. Just got the rubbing coils, everything else is a 10/10. The plastic is still on the bottom of the magnet that protects it cosmetically. looks like an idMAX. Thanks again